加特林机枪在美国内战晚期被用于了战场，这场战争由于某些高级官员对新式武器忧心忡忡而被拖延，之后加特林机枪便在国内与国外得到广泛使用。
After a late entry into the American Civil War, delayed by suspicions of newfangled weapons among some senior soldiers, the Gatling gun was put to use at home and abroad.
本研究以林蛙油为底物，加酶水解，实验确定林蛙油水解最适宜的酶制剂为木瓜蛋白酶。
The Oviductus Ranae was used as substrate and hydrolyzed by papain in the study. The optimum enzyme tohydrolyze the Oviductus Ranae was papain.
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